Asteroid WatchVerified account

@AsteroidWatch

The Center for Near Earth Object Studies characterizes & monitors orbits of asteroids & comets. Part of NASA's Planetary Defense Coordination Office.

Pasadena, California
Joined March 2009

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  1. Months after Hurricane Maria, the Arecibo Observatory Planetary Radar in Puerto Rico has resumed normal operations, capturing high-resolution images of asteroid 3200 Phaethon as it passed Earth last week.

  2. 20 Nov 2017

    First detected interstellar wows scientists: “A strange visitor from a faraway star system.”

  3. New report: continues making progress detecting & characterizing near-Earth objects, but there are thousands of NEOs larger than 140 meters yet to be found. The work continues.

  4. 12 Nov 2017

    There's lots to see in the night sky the rest of November, including meteor showers, planet pairings and a comet.

  5. An int'l team of astronomers completes 1st global exercise using a real asteroid to test response capabilities.

  6. Retweeted

    Return of the Comet: 96P spotted again by and Sun-watching satellites

  7. Astronomers worldwide are surprised & intrigued by an interstellar comet/asteroid that passed thru our solar system.

  8. A worthwhile test: Here's how tracking networks will observe the close pass of small 2012 TC4 on Oct 12

  9. Scientists observed Florence with radar as it passed Earth Sept. 1 & found two small moons orbiting it.

  10. Retweeted

    It's the moon, sunspots AND the station in front of the sun. photographer captures station transiting sun during

  11. Retweeted
    21 Aug 2017

    We’re live on with coverage of across America! Tune in now:

  12. Florence—named for Florence Nightingale—is ~2.7 miles (4.4km) across & will safely pass Earth on Sept 1

  13. Watching for : How will use the safe Oct flyby of the to test detection/tracking networks.

  14. A beautiful treat for the eyes: Saturn’s southern lights.

  15. Retweeted
    20 Jul 2017

    in 1969 Neil Armstrong & took “one small step” & planted 1st human feet on another world

  16. 12 Jul 2017

    How does detect near-Earth asteroids and determine whether their orbits come close to Earth? Take a minute to learn.

  17. On Oct 12, small asteroid 2012 TC4 will pass Earth no closer than 4200 miles/6800 km & likely much farther away.

  18. , our broadcast from June 30 is now available at: Learn how we detect and track space rocks.

  19. If you missed our show on NASA’s Planetary Defense Program, catch the replay at 8pm ET/5pm PT at

  20. Replying to

    If you have questions for our experts, submit them now with . We’ll take some on air Friday & answer others here.

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